Matsushita Electric Industrial Co., Ltd.

Hiroyuki Senoo

Masaki Takahashi

Nobuhiro Hayashi

Yoshitaka Murata

Masaki Shibuya

Hidetoshi Imai

Hiroyuki Uratani

Koichi Fujita

Toshiyuki Yoshida

Masakuni Soejima

Yasuo Oshima

Masaichi Fukushima

Teruyuki Yasuda

An oxygen enrichment apparatus includes an oxygen enriching unit for generating oxygen-enriched air and a discharge unit for discharging the oxygen-enriched air transferred from the suction unit. The oxygen-enriched air generated by the oxygen enriching unit has an oxygen concentration ranging from about 25% to 35%. The apparatus also includes a suction unit for suctioning the oxygen-enriched air from the oxygen enriching unit and a control unit for controlling the operation of the suction unit. The main body is provided with a display unit for indicating a state that the oxygen-enriched air is being discharged out by the discharge unit. The oxygen enriching unit has at least one oxygen enriching membrane for generating the oxygen-enriched air and a condensed water treating unit is installed at an air passage for guiding the oxygen-enriched air from the oxygen enriching unit to the discharge unit via the suction unit.

Oxygen enrichment apparatus

A suction nozzle for use in a vacuum cleaner includes a floor nozzle and a mini nozzle having a suction head, a rotatable joint, and joint, to be detachably secured in the floor nozzle. Either of the suction head and the rotatable joint or the rotatable joint and the joint is vertically joined and the other rotatably joined. Moreover, the suction head is unrotatably secured onto the floor nozzle, and forms an air communication with the floor nozzle.

Vacuum cleaner and suction nozzle employed therein

Growing community of inventors

Shiga, Japan

Hiroyuki Senoo